Farfield Noise Prediction Using Large-Scale Lattice-Boltzmann Simulations

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• 关键词：Lattice ; Boltzmann methods ; Large ; Scale CFD ; Farfield aeroacoustics
• 刊名：Lecture Notes in Computer Science
• 出版年：2017
• 出版时间：2017
• 年：2017
• 卷：10164
• 期：1
• 页码：48-57
• 丛书名：High-Performance Scientific Computing
• ISBN：978-3-319-53862-4
• 卷排序：10164

文摘

In order to predict farfield noise created by the flow over complex geometries, high-fidelity flow simulations based on the Lattice-Boltzmann solver PowerFLOW are used in conjunction with the acoustic analogy solver PowerACOUSTICS. Since the flow needs to be spatially and temporally well resolved, the simulations are usually carried on a large number of computational cores for adequate turnaround times. This paper provides the background on the two-step methodology and gives an overview on aero-acoustics computations in aerospace, ranging from an isolated airframe component to the entire aircraft system.